00872nas a22003134a 4500 GMR-656 AR-SsjUBGM 20251028230909.0 251021s1928 xxuux g 000 0 eng d spa AR-SsjUBGM aacr eng xxu In-3179 Economic Paper. Washington : Bureau of Mines, 1928- n. : il. ; 23 cm Frecuencia irregular Comenzó a publicarse en 1928. En biblioteca años 1928-1932. Geología económica 4043 Estados Unidos. Department of Commerce. Bureau of Mines editor 52811 1928(1) 1929(2-6) 1930(10) 1932(13,15) CR udc IDGYM_PUPER 2025-09-24 35068 35068 0 0 0 0 GM GM 2026-05-16 1928(1) 0 In-3179 AUTO-GM-35068-1 2026-05-16 00:00:00 CR 0 0 0 0 GM GM 2026-05-16 1929(2-6) 0 In-3179 AUTO-GM-35068-2 2026-05-16 00:00:00 CR 0 0 0 0 GM GM 2026-05-16 1930(10) 0 In-3179 AUTO-GM-35068-3 2026-05-16 00:00:00 CR 0 0 0 0 GM GM 2026-05-16 1932(13,15) 0 In-3179 AUTO-GM-35068-4 2026-05-16 00:00:00 CR